Hi @Georgeann7
Go to the calendar, refresh it and check whether the booking is still there - if it is, the guest has not canceled yet.
If the booking is no longer on the calendar, it's canceled. You will still have your message thread with the guest where you can communicate further.
As I understand, the guest is the one who wants to cancel (i.e. the reason that the booking is not going ahead is not your fault). So don't allow the guest to force you to cancel. The cancellation has to come from their side, otherwise rather get Airbnb Support involved.